/Engine/Source/Editor/UnrealEd/Public/EditorViewportClient.h
Utility function to return whether the command accepts the key states
True if one of the command's chords accepts the input :
bool IsCommandChordPressed ( const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FUICommandInfo](API\Runtime\Slate\Framework\Commands\FUICommandInfo) > InCommand, [FKey](API\Runtime\InputCore\FKey) InOptionalKey ) const